I’ve got a Rab Drillium, an Altura Nevis, an Endura Crosstrack and a Rab Baltoro Lite soft shell.
The Altura is pish, the zip has fallen apart and it managed 7 minutes of rain before letting in water the first time I used it (it came from an MBR subscription).
The Drillium is excellent, it’s eVent and the fabric hasn’t failed on me yet. You will get wet through water pouring down your neck if it’s not completely zipped up and up the sleeves, but it’s been great for me.
The Endura is a bit heavy for normal riding but it remained mostly waterproof in some of the heaviest rain I’d experienced in the Highlands.
The softshell has never got fully soaked yet, I use it as my winter riding jacket and it’s perfect for that.